Press for processing and recovering preselected solid urban waste and the like

Abstract

A press for processing and recovering preselected solid urban waste and the like comprises a hopper which is operatively coupled to a pressing device for reducing the volume of the waste which, in a pressed condition, is conveyed by the pressing device to a cutting device designed for forming the waste into preset cross-section rods.

I claim: 
     
       1. A press for processing and recovering waste, comprising a hopper operatively coupled to pressing means for reducing the volume of the waste and for feeding said waste, in a pressed condition, toward cutting means for cutting said pressed waste into preset cross section bars, said cutting means comprising a grid-like blade assembly including a plurality of knives arranged at a right angle with respect to one another and having a cutting edge transverse to the feeding direction of said pressing means, said blades being coupled to a plurality of electric resistances for improving the transforming of a waste block made by pressing into a plurality of bars to be used as a combustible material. 
     
     
       2. A press according to claim 1, characterized in that said pressing means comprise a cylinder in which are provided a movable piston and a carriage sliding on rails, said piston and carriage being operatively coupled, in order to press said waste in cooperation with an abutment removable bulkhead arranged in said cylinder. 
     
     
       3. A press according to claim 2, characterized in that said piston is driven by a piston rod in turn driven by an electrically controlled hydraulic system. 
     
     
       4. A press according to claim 3, characterized in that said hydraulic system comprises at least two pumps, each said pump being suitable for operating said press. 
     
     
       5. A press for processing and recovering waste, comprising a hopper operatively coupled to a pressing device for reducing the volume of the waste and for feeding said waste, in a pressed condition, toward a cutting device for cutting said pressed waste into preset cross-section bars, said cutting device comprising a grid-like blade assembly including a plurality of knives arranged at a right angle with respect to one another and having a cutting edge transverse to the feeding direction of said pressing device, said blades being coupled to an electric resistance device for improving the transforming of a waste block made by pressing into a plurality of bars.